CN202246215U - Secondary chlorination system based on real-time feedback - Google Patents
Secondary chlorination system based on real-time feedback Download PDFInfo
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- CN202246215U CN202246215U CN2011203876673U CN201120387667U CN202246215U CN 202246215 U CN202246215 U CN 202246215U CN 2011203876673 U CN2011203876673 U CN 2011203876673U CN 201120387667 U CN201120387667 U CN 201120387667U CN 202246215 U CN202246215 U CN 202246215U
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Abstract
The utility model discloses a secondary chlorination system based on real-time feedback. The system comprises an inflow pipeline, a circular pump, a first check valve, a sodium hypochlorite generator, a second check valve, on-line monitoring equipment, a rotor flowmeter, a medicine-feeding pump, a water outlet pipeline, an electromagnetic flowmeter and a PLC (programmable logic controller) control cabinet. According to the utility model, the on-line monitoring equipment is utilized so as to feed back the secondary chlorination effect in real time, and on the basis, the chlorination quantity is automatically controlled through the PLC, so as to form a real-time feedback regulation process and reach the optimum chlorination effect finally.
Description
Technical field
The utility model relates to a kind of tap water treatment technology, relates in particular to a kind of secondary chlorination system based on real-time feedback that the town and country one supplies water that is used for.
Background technology
To the deficiency and the needs of controlling DBPs, the security of increasing water quality in the water of conventional chlorination method, " secondary chlorination " becomes the focus that industry is paid close attention to gradually.This method is in pipe network, to select a series of certain location as " secondary chlorination point ", tap water is sterilized once more, to satisfy the chlorination mode of the required minimum chlorine residue level of water node.U.S.EPA is defined as the measure that improves residual chlorine concentration in the insufficient zone of water supply network chlorine residue with the secondary chlorination, adds usually in dried up factory zone far away.In theory, should have following advantage than conventional chlorination method secondary chlorination:
1. keep chlorine residue spatial and temporal distributions relatively uniformly, help to solve the insufficient problem of pipe network periphery residual chlorine concentration;
2. suppress the sterilization side reaction, reduce DBPs.The secondary chlorination can reduce the reaction contact time of chlorine and water body in theory, thereby reaches the effect that reduces DBPs.
3. can reduce total chlorine dosage.U.S.EPA also recommends water factory when the control disinfectant consumption, to consider the favourable part that secondary adds.The theoretical foundation that the secondary chlorination reduces total chlorine dosage is following:
(1) spatial and temporal distributions of uniform more residual chlorine concentration can reduce the concentration that is evenly distributed of chlorine residue, thereby reduces the mean rate that chlorine declines and reacts;
(2) each secondary chlorination point only needs confirm chlorine dosage according to its coverage, thereby effectively reduced the residence time of chlorine in pipe network, has reduced the chlorine quality consumption that reaction causes that declines then.
4. under the prerequisite of keeping the chlorine dosage economy, do not reduce the safety of ductwork water quality, reduce the pipe network risk that water quality worsens rapidly after operational trouble occurring or suffering artificial destruction to a certain extent.
It seems that totally the secondary chlorination can improve the water quality level of water supply network, can reduce the running cost of pipe network again.And because the secondary chlorination can significantly reduce the dosage of chlorhexidine-containing disinfectant; Therefore also be the means that effectively suppress DBPs; There are some researches show; There are positive correlation in the growing amount of chlorine disinfection by-product (CDBPs) and the dosage of chlorine, reduce the growing amount that chlorine dosage can effectively reduce CDBPs in the water.
The utility model content
The purpose of the utility model is the deficiency to prior art, and a kind of secondary chlorination system based on real-time feedback is provided, and the utility model can carry out the dosage of real time altering secondary chlorination according to the variation of water quality data, and it is reasonable to make it economical and effective.
The purpose of the utility model realizes through following technical scheme: a kind of secondary chlorination system based on real-time feedback, and it comprises: suction culvert, recycle pump, first vacuum breaker, hypochlorite generator, second vacuum breaker, on-line monitoring equipment, spinner-type flowmeter, chemicals feed pump, outlet pipeline, magnetic flow meter and PLC housing; Wherein, Said recycle pump and spinner-type flowmeter are installed on the pipeline between suction culvert and the outlet pipeline successively; Hypochlorite generator's import is received on the pipeline between recycle pump and the spinner-type flowmeter through first vacuum breaker, and hypochlorite generator's outlet is received on the outlet pipeline through chemicals feed pump; On-line monitoring equipment is received on the pipeline between recycle pump and the spinner-type flowmeter through second vacuum breaker, and on-line monitoring equipment, chemicals feed pump and magnetic flow meter link to each other with the PLC housing through SW respectively.
The utlity model has following technique effect:
1, mostly in the past chlorinating equipment is to be applied to water factory or phreatic water is carried out chlorination, though had much about the theoretical investigation and the pertinent literature of secondary chlorination, directly is used for midway the secondary chlorination still first.
2, native system has reasonable assurance for solving the water quality safety problem (particularly chlorination problem) that occurs in the one water supply of town and country.
3, utilized on-line monitoring equipment, can feed back in real time secondary chlorination effect, and on this basis, control chlorine dosage automatically, formed the process of a real-time feedback adjustment, reached the optimal effectiveness of chlorination at last through PLC.
Description of drawings
Fig. 1 is the structure iron of native system;
Among the figure, suction culvert 1, recycle pump 2, first vacuum breaker 3, hypochlorite generator 4, second vacuum breaker 5, on-line monitoring equipment 6, spinner-type flowmeter 7, chemicals feed pump 8, outlet pipeline 9, magnetic flow meter 10, PLC housing 11, SW 12.
Embodiment
As shown in Figure 1, the utility model comprises based on the secondary chlorination system of real-time feedback: suction culvert 1, recycle pump 2, first vacuum breaker 3, hypochlorite generator 4, second vacuum breaker 5, on-line monitoring equipment 6, spinner-type flowmeter 7, chemicals feed pump 8, outlet pipeline 9, magnetic flow meter 10, PLC housing 11.
Recycle pump 2 and spinner-type flowmeter 7 are installed on the pipeline between suction culvert 1 and the outlet pipeline 9 successively; Hypochlorite generator 4 import is received on the pipeline between recycle pump 2 and the spinner-type flowmeter 7 through first vacuum breaker 3, and hypochlorite generator 4 outlet is received on the outlet pipeline 9 through chemicals feed pump 8.On-line monitoring equipment 6 is received on the pipeline between recycle pump 2 and the spinner-type flowmeter 7 through second vacuum breaker 5, and on-line monitoring equipment 6, chemicals feed pump 8 and magnetic flow meter 10 link to each other with PLC housing 11 through SW 12 respectively.
It is Guangdong China board SZ037 product that recycle pump 2 can adopt model; Hypochlorite generator 4 can adopt the small-sized hypochlorite generator of SCIYEE NT-C series; It is that product, the pipeline of MILTON ROY GM0050 can be pvc pipe that chemicals feed pump 8 can adopt model; But all be not limited thereto, with 6 imports of on-line monitoring equipment vacuum breaker all be installed hypochlorite generator 4 before, the refluence of anti-sealing.The effect of spinner-type flowmeter 7 is that whether water speed can reach requirement in the viewing system, reduces the retardation time of WQM.PLC housing 11 links to each other with magnetic flow meter 10, on-line monitoring equipment 6 and chemicals feed pump 8 through signal line 12.What magnetic flow meter 10 was surveyed is the flow velocity in the water supply main pipe.
The operation scheme of the utility model is following: tap water gets into the secondary chlorination system from the water supply main pipe through suction culvert 1; Through water circulation speed in the recycle pump 2 quickening systems; A part of then tap water gets into hypochlorite generator's 4 preparation finite concentration salt solutions, and the salt solution electrolysis produces certain density chlorine bleach liquor, through chemicals feed pump 8 controls the chlorine bleach liquor is pumped into outlet pipeline 9; Get into the water supply main pipe; Another part tap water then forms a loop, also gets back to the water supply main pipe through outlet pipeline 9, and in the middle of pipeline, supplies water for on-line monitoring equipment 6 through second vacuum breaker 5.PLC housing 11 is accepted the signal of magnetic flow meter 10 and on-line monitoring equipment 6 through signal line 12; The aperture of the algorithm controls chemicals feed pump 8 that process presets; Regulate dosage; Make the most economical and chlorination best results of dosage, make chlorine residue in the terminal tap water of pipe network can reach the value (> 0.05mg/L of national drinking water standard (GB5749-2006) defined).
Claims (1)
1. secondary chlorination system based on real-time feedback; It is characterized in that it comprises: suction culvert (1), recycle pump (2), first vacuum breaker (3), hypochlorite generator (4), second vacuum breaker (5), on-line monitoring equipment (6), spinner-type flowmeter (7), chemicals feed pump (8), outlet pipeline (9), magnetic flow meter (10) and PLC housing (11); Wherein, Said recycle pump (2) and spinner-type flowmeter (7) are installed on the pipeline between suction culvert (1) and the outlet pipeline (9) successively; Hypochlorite generator's (4) import is received on the pipeline between recycle pump (2) and the spinner-type flowmeter (7) through first vacuum breaker (3), and hypochlorite generator's (4) outlet is received on the outlet pipeline (9) through chemicals feed pump (8); On-line monitoring equipment (6) is received on the pipeline between recycle pump (2) and the spinner-type flowmeter (7) through second vacuum breaker (5), and on-line monitoring equipment (6), chemicals feed pump (8) and magnetic flow meter (10) link to each other with PLC housing (11) through SW (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203876673U CN202246215U (en) | 2011-10-13 | 2011-10-13 | Secondary chlorination system based on real-time feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203876673U CN202246215U (en) | 2011-10-13 | 2011-10-13 | Secondary chlorination system based on real-time feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246215U true CN202246215U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203876673U Expired - Fee Related CN202246215U (en) | 2011-10-13 | 2011-10-13 | Secondary chlorination system based on real-time feedback |
Country Status (1)
| Country | Link |
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| CN (1) | CN202246215U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351303A (en) * | 2011-10-13 | 2012-02-15 | 浙江大学 | Secondary chlorine dosing system based on real-time feedback |
| CN104891613A (en) * | 2015-05-25 | 2015-09-09 | 北京市自来水集团有限责任公司 | Direct-current electronic control chlorinating device |
| CN108002496A (en) * | 2017-12-29 | 2018-05-08 | 北京工业大学 | A kind of disinfectant preparation facilities and dosing control system for being used to build domestic hot-water |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
-
2011
- 2011-10-13 CN CN2011203876673U patent/CN202246215U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351303A (en) * | 2011-10-13 | 2012-02-15 | 浙江大学 | Secondary chlorine dosing system based on real-time feedback |
| CN104891613A (en) * | 2015-05-25 | 2015-09-09 | 北京市自来水集团有限责任公司 | Direct-current electronic control chlorinating device |
| CN108002496A (en) * | 2017-12-29 | 2018-05-08 | 北京工业大学 | A kind of disinfectant preparation facilities and dosing control system for being used to build domestic hot-water |
| CN108002496B (en) * | 2017-12-29 | 2023-09-19 | 北京工业大学 | Disinfectant preparation device for building domestic hot water and dosing control system |
| CN112939302A (en) * | 2021-02-20 | 2021-06-11 | 同济大学 | Building water supply pretreatment device based on ultraviolet chlorine advanced oxidation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20161013 |